Did you use white thinset to install the stone?

yes

Just wanted to make sure it wasn't a grey mortar that may have caused the shading problem.

Well, after having a heater on for the last several weeks, it has finally dried out.



To prevent anymore moisture from being absorbed from the bottom side of the overhanging edge, I've sprayed several coats of polyurethane there.

Just finished putting some clear silicone, should be showering in it tomorrow! Woo Hoo !!!

Hopefully the issue has been resolved.

Let us know what happens after that first shower.

All is good, we've had a few showers now, and there is no change in the color of the bench.

Wow, it sure is really nice to have a bigger shower, can turn around without knocking something over.

The project is now deemed complete.

On to the next project?

Already on it.... Formal dining room makeover- remove popcorn ceiling, eliminate wall paper, etc. Should be done within 2 weeks.